Blade drop for power device and method of manufacturing thereof
US9511429B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/626
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A table saw in one embodiment a swing arm movable along a swing arm path between a first swing arm position adjacent a latch hold mechanism and a second swing arm position spaced apart from the latch hold mechanism, a blade supported by the swing arm, a charge coupling plate mounted in close proximity to the blade so as to form a capacitor, an actuating device configured to transfer a force to the swing arm when the swing arm is maintained at the first swing arm position resulting in a bias on the latch hold mechanism, and a control system configured to control the actuating device to transfer the force to the swing arm in response to a sensed change in capacitance of the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.